Wall structure



AI G. AND C. F. CAMERON.

WALL STRUCTURE.

APPLICAHQN FILED JULY 21.1919.

1. ,408,983. A Patented Mar. 7, 1922.

A TTORNEYS.

UNITED STATES PATENT oEFicE.

ALFRED G. CAMERON. OF LOS GATOS, AND CHARLES F. CAMERON, OF SAN FRANCISCO, CALIFORNIA; SAID CHARLES F, CAMERON ASSIGNOR T0 SAID ALFRED GVCAMERON.

WALL STRUCTURE.

' Application nica my 21,

To all zc/10m it 721mg/ concern.'

Be it known that we, ALFRED G. CAMERON and CHARLES F. CAMERON, subjects of Great Britain, and residents, respectively, of Los Gatos, county of Santa Clara, and of the cit-y and county of San Francisco, both in the State of California, have invented a certain new and useful Wall Structure, of which the folowing is a specification.

The invention relates to wall and ceiling structures and especially to such structures made offiber board or wall-board.

An object of the invention is to provide a fiber board wall structure or ceiling structure in which the fiber board is fully controlled.

Another object of the invention is to provide a fiber board wall structure which eliminates the necessity of battens and over which wall paper may be placed.

A further object of the invention is to provide a strong and rigid liber board wall structure.

The invention possesses other advantageous features, some of which, with the foregoing, will be set forth at length in the following description, where we shall outline in full, that form of the invention which we have selected for illustration in the drawings accompanying and forming part of the present specification. In said drawings we have shown two forms of wall structure, but it is to be understood that we do not limit ourselves to such forms, since the invention, as expressed in the claims, may be embodied in a plurality of other forms.

Referring to said drawings:

Fi ure 1 is an elevation of a partly finishe and partly unfinished wall structure of our invention, portions thereof being broken away to better disclose the construction.

Fig. 2 is a similar view of a modified form of structure.

Our invention is applicable to wall structures and ceiling structures, and in the specication and claims we shall designate it as a wall structure, but it is to beunderstood that the expression wall structure includes ceiling structures. Fiber board or wall-board has a ve-ry definite fiber rain, that is, the fibers all lie in substantial y the same direction, and the fiber board has much greater strength and rigidity along the line of the fibers than it has along a line normal Speclcation of Letters Patent.

Patented Mar. 7, 1922. 1919. Serial No.v312,114.

to the line of the fibers. Also, the expansion and contraction of fiber board occurs almost entirely along the line normal to the line olf the fibers. Heretofore it has been the practice to apply the fiber board in large sheets with the grain of the board parallel to the grain of the studding, thereby placing the weakest section of the board at right angles to the studding and causing the eX- pansion and contraction to occur along ines at right angles to the studding.. The edges of the board are nailed to the studding, and consequently, battens must be employed to cover the spaced joint between the edges and expansion of the board would cause warping, so that there was no control of the board after it had been placed, and the board could not be papered over.

In accordance with our invention, we cut the sheets of fiber board into relatively narrow widths, forming strips, with the grain running lengthwise of the narrow sheets, and apply the board to the wall studding, with the grain of the board normal to the grain of the studding. The studding provides the necessary vertical strength to the wall and the fiber board, placed in accordance with our invention, provides the necessary longitudinal strength. The narrow strips do not vary their length under varia-- tions of temperature or humidity, since the grain runs lengthwise of the strips and the longitudinal edges of the strips are free and spaced from each other, so that expansion and contraction will not cause warping. Further, by making the strips narrow, the amount of expansion or contraction of each strip is very small, and does not produce any warping or pulling.

n accordance with our invention, the fiber board or wall-board, which may or may not be waterproofed, is cut into or formed into relatively small strips 2, for instance about four feet long and one foot wide with the fibers or grain of the board running in the direction of the length of the strip or panel. These strips are arranged longitudinally of the Wall and are Secured at their ends to the studding 3, in which the grain runs vertically. The grain of the strip is, therefore, normal to the grain of the studding. The strips are preferably of such length that they span three studs and l are preferably staggered, so that each alternate panel extends tothe next stud, as yshown l' in the drawings.

The strips or lll'ianels. are

disposed`1ong1tudinally andare arranged the 'Ilie structure is further stren l the movement ofthe panels in t e direction one above the other, with a small p or crack 4 between their longitudinal edges to permit expansion and are secured tudinal movement of the ends of the p ane s.

can be nailed closely.

of their width is controlled by vertically disposed reinforcing ber sheets 5, pasted or glued tothe strips. The reinforcing sheets are preferably of a width equal to the spacin of the studs and the graln of the ber s eets is normal to the grain of the strips. These sheets may be of any desired thickness, but we preferl to make them 'thinner than the strips or panels'. The

lsheets are secured over their entire s urface -to the strips, vand since the grain 1n thestrips is normal to the grain in the s heets, there is no movement or vcontraction 1n the width of the sheet and consequently they may be arranged with their Ivertical edges abutting, thereby eliminating the necessity of battens. By'crossing the grain of the studs, strips and sheets, we have a' threeply construction, which makes the finished wall inert and self-controlled, so .that it may be safely papered or! painted without -fear of opemng seams or buckling wall sections.

In Fig. 2, we have shown a .modied conl struction, whichl results in the vroduction of a stronger and more rigid vwa l. In this construction, diagonally disposed sheets 6- with the grain running in the direction of the length of the sheets-are pastedV or glued to theI studs by nails and since there is no lon 1- hened and onal sheets in abutment or substantial abutment. .Over the diagonal sheets, the verti-i '.cal reinforcing or surface sheets are adhesiveiy secured, as in the construction shown in ig; 1. The various ber anels and ber-[s eets may be waterproof or not, as desired. v

We claim: e

-1. A wall structure including studding strips of narrow ber board which are substantially inexpansible longitudinall and \are secured to the studdmg in s ightly spaced relation-laterally; and ay covering of relatively Wider ber sheets laid on the strips at right angles thereto and in close lateral relatlon to form a continuous facing and being adhesively secured throughout the areaV of contactwith the strips so that .lateral expansion of the strips and sheets is prevented and buckling of the wall face avoided and a smooth outer face maintained.

2. A wall which consists of studding, narrow strips of longitudinally .inexpansible brous board secured tothe studding in o 'set courses; and an adhesively secured covering' of, relatively wider ber'sheets so that the contacting faces of the strips and sheets are mutually secured. throughout their area, whereby a rigid, plane wall body is secured.

In testimony whereof, we have hereunto set our hands at San Francisco, California, this 11th day of July, 1919.

' ALFRED G. CAMERON.`

CHAS. F.` CAMERON. In presence of- H. G.-Pnos'r. 

